Drug administration system/src/com/hqyj/interceptor/LoginInterceptor.java

（完整代码） 1KB 

package com.hqyj.interceptor;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

public class LoginInterceptor implements HandlerInterceptor{

	@Override
	public void afterCompletion(HttpServletRequest arg0,
			HttpServletResponse arg1, Object arg2, Exception arg3)
			throws Exception {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1,
			Object arg2, ModelAndView arg3) throws Exception {
		// TODO Auto-generated method stub
		
	}

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response,
			Object arg2) throws Exception {
		if(request.getRequestURI().indexOf("login")>=0){
			return true;
		}
		String name = null;
		Cookie[] cook = request.getCookies();
		if(cook!=null){
			for (Cookie cookie : cook) {
				if("username".equals(cookie.getName())){
					name = cookie.getValue();
				}
			}
		}
		
		if(name!=null){
			return true;
		}else{
			request.getRequestDispatcher("/WEB-INF/jsp/login.jsp").forward(request, response);
			return false;
		}
	}

}

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